bull's eye condenser
Date: 1856-1862
Inventory Number: 1029e
Classification: Microscope Condenser
Subject:
Maker: Camille Sébastien Nachet (1799 - 1881)
Owner: Jonathan Mason Warren (1811 - 1867)
Donor: John Collins Warren (1842 - 1927)
Collector: Ernst-Lewis Collection of Microscopes
Cultural Region:
Place of Origin:
Dimensions:
17.5 × 11.5 × 5.7 cm (6 7/8 × 4 1/2 × 2 1/4 in.)
Description:
1029 is a fine example of the type of compound microscope that Nachet called his "grand modèle." For descriptive purposes and better comparison with a similar but not identical, early "grand modèle" by Nachet et Fils, the assembly is divided into these components, each with their own images and written details:
1029a: the microscope with eyepieces
1029b: box of objectives and condensers
1029c: microscope case and parts box, with diverse accessories
1029d: box of slides
1029e: bull's eye condenser
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1029e is a bull's eye condenser included in the box of the Nachet microscope. It consists of a condensing lens held in a brass frame on a stem. The stem slips into an articulated arm that screws into a lead-weighted brass base. The base has a conical profile.
1029a: the microscope with eyepieces
1029b: box of objectives and condensers
1029c: microscope case and parts box, with diverse accessories
1029d: box of slides
1029e: bull's eye condenser
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1029e is a bull's eye condenser included in the box of the Nachet microscope. It consists of a condensing lens held in a brass frame on a stem. The stem slips into an articulated arm that screws into a lead-weighted brass base. The base has a conical profile.
Signedunsigned
Historical AttributesThis microscope was owned by Dr. Jonathan Mason Warren (1811-1867), and was presented by Dr. J. Collins Warren (1842-1927) to the Ernst-Lewis Collection. Both Warrens were part of a famous medical dynasty at the Harvard Medical School.
Curatorial RemarksA note attached to the bull's eye condenser and initialed by David P. Wheatland says that the "Bull's eye [was] added 5/21/57."
ProvenanceDr. Jonathan Mason Warren, Harvard Medical School, before 1867; Dr. John Collins Warren, Harvard Medical School; gift to Ernst-Lewis Collection of Microscopes (inv. no. 29), Harvard Medical School.